B0721
B0721: Climate Control Temperature Sensor Circuit Malfunction
📖 What Does B0721 Mean?
Symptoms
- • Inconsistent air temperature
- • poor air circulation
- • and unusual sounds from the climate control system.
Common Causes
- • Faulty temperature sensor
- • wiring issues
- • or a malfunctioning climate control module.
Possible Solutions
1. Check the temperature sensor for any signs of damage or corrosion. Replace it if necessary. 2. Inspect the wiring harness for any signs of damage or wear. Repair or replace as needed. 3. Check the climate control module for any signs of malfunction. Replace it if necessary.
Fixing this on your car?
Get the exact oil type, fluid capacities, and torque specs for your specific vehicle before you start the repair.
❓ Common Questions About B0721
Can I drive with code B0721?
You can drive for a short time, but should address code B0721 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix B0721?
The estimated repair cost for code B0721 is between $100 and $300. This includes parts and labor for most makes and models.
Is this code easy to fix myself?
This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.
Required Parts
Recommended Tools
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View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with B0721
B0719: Audio System Malfunction
B0720: Airbag System Circuit Short to Ground
B0722: Door Locks Actuator Circuit Malfunction
B0723: Power Window Relay Circuit Malfunction
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system